SHARP PCE012 Technical Report

PERSONAL COPIER: SF-2014/2114/2214 Series

Date

:

Oct. 31, 1997

SF-2014/2114/2214 SERIES
CORRECTIVE ACTIONS AGAINST DAMAGE TO THE LOWER
FRAME DUE TO LOOSENESS OF THE TORSION BAR.

1.Model Name: SF-2014/2114/2214, SN-1420/1430, Z-800 (For north American)

2.General: This report describes the corrective actions against damage to the lower frame (the

No. : PCE-0012

frame is broken into shutters,in the worst case) which is caused by the Torsion bar on
the front end coming loose and hitting against the left side of the frame unit.
(This symptom occurred at machines manufactured in about September 1996.)

3.Description: We are in the process of investigation into the cause of this trouble. But it has been

confirmed that repeated open/close operation of the upper frame infrequently causes
the tip of the Torsion bar to come loose from the fixing plate, resulting in the Torsion bar
hitting against the left side of the lower frame and damage to the lower frame.

[Normal]

4.Action: A torsion bar fixing bracket is added.

[Torsion bar tip coming loose]

<Parts required>

Torsion bar fixing bracket … 1 pc (Fig.2-[2]) Speed nut … 1 pc (Fig.2-[4])
Screw (Cup tight M4 × 8) … 1 pc (Fig.2-[3]) Wire saddle … 1 pc (Fig.5-[1])

<Installation procedure>

1) Open the front cover. (See Fig.1)

2) Remove the mounting screw (1 piece) from the fusing unit connector cover and
remove the fusing unit cover. (See Fig.1)

Fusing unit cover

[Fig.1]

SHARP CORPORATION Printer and Scanner Division

1/3

Orange

BA

3) Using nippers, cut wire saddle (Fig.2-[1]) installed to the Torsion bar unit and
remove the saddle.
Note [1] : Take care not to put the removed wire saddle into the machine.
Note [2] : Do not damage nor cut the wire when cutting the wire saddle with nippers.

4) Install Torsion bar fixing bracket (Fig.2-[2]) using screw (Fig.2-[3]) and speed nut
(Fig.2-[4]) to fix the U-portion of the Torsion bar.
The screw must be installed into the hole at which the wire saddle was attached.
Note [3] : For machines where the tip of the torsion bar protrudes only a bit from the

fixing plate,the U-portion with the shank of a screwdriver to shorten the
U-portion (See Fig.3).

Proper attachment

Align the speed nut hole to
the angle hole.

[Fig.2]

Improper attachment

Need to insert the torsion bar
in the arrow direction.

If the screw does not engage with the
speed nut located on the back side,
slightly press the nut in the arrow
direction while tightening the screw.

2/3

[Fig.3]